Abstract
For the wear protection of cylinder bore in aluminum cast material the internal plasma spraying technology offers a new economical solution. Size and weight of engine blocks significantly can be decreased in comparison with the traditional cast iron sleeves.
Coefficient of friction between piston ring and cylinder is reduced and the wear resistance significantly is increased. This process now is in the introduction phase in the European and Japanese automotive industry. This process not only presents technological advantages, but also is economical interesting in comparison with the actual alternatives.